A salivary gland tumor is an abnormal growth that develops in the salivary glands. These glands produce saliva, which helps with chewing, swallowing, and digestion. Salivary gland tumors can be non-cancerous (benign) or cancerous (malignant). Many tumors occur in the parotid gland, which is the largest salivary gland located near the ear and jaw area. Most salivary gland tumors are benign, but...